889222760

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{4139}}^1$

素因数の和:4322

約数の個数: 64

約数和(自身を含む): 2065694400

約数和(自身を除く): 1176471640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 131, 164, 205, 262, 328, 410, 524, 655, 820, 1048, 1310, 1640, 2620, 4139, 5240, 5371, 8278, 10742, 16556, 20695, 21484, 26855, 33112, 41390, 42968, 53710, 82780, 107420, 165560, 169699, 214840, 339398, 542209, 678796, 848495, 1084418, 1357592, 1696990, 2168836, 2711045, 3393980, 4337672, 5422090, 6787960, 10844180, 21688360, 22230569, 44461138, 88922276, 111152845, 177844552, 222305690, 444611380, 889222760]

約数ペア:

[(1, 889222760), (2, 444611380), (4, 222305690), (5, 177844552), (8, 111152845), (10, 88922276), (20, 44461138), (40, 22230569), (41, 21688360), (82, 10844180), (131, 6787960), (164, 5422090), (205, 4337672), (262, 3393980), (328, 2711045), (410, 2168836), (524, 1696990), (655, 1357592), (820, 1084418), (1048, 848495), (1310, 678796), (1640, 542209), (2620, 339398), (4139, 214840), (5240, 169699), (5371, 165560), (8278, 107420), (10742, 82780), (16556, 53710), (20695, 42968), (21484, 41390), (26855, 33112)]